i'm thinking about getting the big mouth manifold and i'm wondering what kind of gains can i expect? i already have a mild cam, cat back exhuast, homemade ram air, airfoil, and forged pistons at a 10:1 compression ratio. will i notice an increase of power? if i get the big mouth manifold i will probably then get siamesed runners after i get the money, so will i even see better results then? any info will be great, thanks.

 

Save yourself the money, port your own.

 

If you're going to fork out money to TPiS why stop at just the base.

For what they want for a ported edelbrock base you're more than half way to a stealth ram, which offers some REAL gains

Unless you want stump pulling truck like torque that will never see 6k rpms happily.